Added an HLSL shader for rendering water surface.
updated: a planar reflection shader
updated: CPlanarReflectionTest
updated: comments
updated: CPlanarReflectionTest
updated: CPlanarReflectionTest

Split functions. Added CPlanarReflectionTest::RenderMirroredSceneToTextureRenderTarget().
changed: the output directory for debug files.
changed: source code related to OpenGL

- Calls glActiveTexture() before calling glBindTexture().
updated: C2DPrimitiveRenderer_D3D::Render()
updated: CTextureFontTest::HandleInput()
updated: EmbeddedGenericGLSLShader

Added the support for planar reflection.